VM: Re-format to use at most one newline between functions

runtime/vm/verifier.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_VERIFIER_H_
 #define RUNTIME_VM_VERIFIER_H_
 
 #include "vm/flags.h"
 #include "vm/globals.h"
 #include "vm/handles.h"
 #include "vm/visitor.h"
 
 namespace dart {
 
 // Forward declarations.
 class Isolate;
 class ObjectSet;
 class RawObject;
 
-
 enum MarkExpectation { kForbidMarked, kAllowMarked, kRequireMarked };
 
-
 class VerifyObjectVisitor : public ObjectVisitor {
  public:
   VerifyObjectVisitor(Isolate* isolate,
                       ObjectSet* allocated_set,
                       MarkExpectation mark_expectation)
       : isolate_(isolate),
         allocated_set_(allocated_set),
         mark_expectation_(mark_expectation) {}
 
   virtual void VisitObject(RawObject* obj);
@@ skipping 31 matching lines @@
   virtual void VisitHandle(uword addr);
 
  private:
   ObjectPointerVisitor* visitor_;
 
   ObjectSet* allocated_set;
 
   DISALLOW_COPY_AND_ASSIGN(VerifyWeakPointersVisitor);
 };
 
-
 #if defined(DEBUG)
 class VerifyCanonicalVisitor : public ObjectVisitor {
  public:
   explicit VerifyCanonicalVisitor(Thread* thread);
   virtual void VisitObject(RawObject* obj);
 
  private:
   Thread* thread_;
   Instance& instanceHandle_;
 
   DISALLOW_COPY_AND_ASSIGN(VerifyCanonicalVisitor);
 };
 #endif  // defined(DEBUG)
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_VERIFIER_H_